Winter weather advisory: 4-6 inches of snow expected

A plow clears Douglas County Road 1029 near Lecompton, Kan., Monday, Feb. 25, 2013. Hundreds of snow plows and salt spreaders are hitting roads and highways across the nation's heartland, preparing for a winter storm that could dump up to a foot of snow in some areas and bring dangerous freezing rain and sleet to others. (AP Photo/Orlin Wagner)